FIGURE 4 in Re-evaluation of the genus Biapertura Smirnov, 1971 (Cladocera: Anomopoda Chydoridae)

FIGURE 4. Biapertura affinis (Leydig, 1860) from Glubokoe Lake, Moscow Area, Russia. A–L, thoracic limbs of adult parthenogenetic female. A, limb I. B, IDL and ODL of limb I. C. inner setae of endites 1–2 of limb I. D, limb II. E, exopodite of limb III. F–G, inner and outer parts of inner portion of limb III. H, exopodite of limb IV. I, inner portion of limb IV. J–K, limb V and its gnathobase filter plate. L, limb VI. M, copulatory hook and IDL of thoracic limb I of adult male. (A–L, orig.; M, after Sinev et al., 2020)